Butman, B., Alexander, P., and Bothner, M., 2004, Time-series photographs of the sea floor in western Massachusetts Bay; June 1998 to May 1999: U.S. Geological Survey Data Series 96, DVD-ROM. (Also available at http://pubs.usgs.gov/ds/2004/96/).

Butman, B., Alexander, P., and Bothner, M., 2004, Time-series photographs of the sea floor in western Massachusetts Bay; May 1999 to September 1999; May 2000 to September 2000; and October 2001 to February 2002: U.S. Geological Survey Data Series 97, DVD-ROM. (Also available at http://pubs.usgs.gov/ds/2004/97/).

Butman, B., Alexander, P., and Bothner, M., 2004, Time-series photographs of the sea floor in western Massachusetts Bay; June 1997 to June 1998: U.S. Geological Survey Data Series 87, DVD-ROM. (Also available at http://woodshole.er.usgs.gov/pubs/ds-87/).

Twichell, D., Polloni, C., Ambroziak, C., 1993, CD-ROM Atlas of the Deepwater Parts of the U.S. Exclusive Economic Zone in the Atlantic Ocean, the Gulf of Mexico, and the Eastern Caribbean Sea; GLORIA Sidescan Sonar Atlas and Data: U.S. Geological Survey Digital Data Series DDS-15, CD-ROM. (Also available at http://pubs.usgs.gov/dds/dds15/).